189227913 has 8 divisors (see below), whose sum is σ = 288347328. Its totient is φ = 108130224.

The previous prime is 189227911. The next prime is 189227947. The reversal of 189227913 is 319722981.

189227913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 189227913 - 2¹ = 189227911 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189227911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4505406 + ... + 4505447.

It is an arithmetic number, because the mean of its divisors is an integer number (36043416).

Almost surely, 2^189227913 is an apocalyptic number.

It is an amenable number.

189227913 is a deficient number, since it is larger than the sum of its proper divisors (99119415).

189227913 is an equidigital number, since it uses as much as digits as its factorization.

189227913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9010863.

The product of its digits is 54432, while the sum is 42.

The square root of 189227913 is about 13756.0137031045. The cubic root of 189227913 is about 574.1099404155.

The spelling of 189227913 in words is "one hundred eighty-nine million, two hundred twenty-seven thousand, nine hundred thirteen".